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Crystal‐Field Analysis of the Ce 3+ Spectrum in YAlO 3 Single Crystals
Author(s) -
Kammoun S.,
Kamoun M.
Publication year - 2002
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(200202)229:3<1321::aid-pssb1321>3.0.co;2-5
Subject(s) - multiplet , crystal (programming language) , hamiltonian (control theory) , spectral line , excitation , field (mathematics) , crystal field theory , atomic physics , chemistry , ultraviolet , absorption spectroscopy , emission spectrum , crystallography , physics , ion , optics , quantum mechanics , mathematical optimization , mathematics , organic chemistry , computer science , pure mathematics , programming language
Infrared and ultraviolet absorption spectra arising from f → f and f → d transitions of Ce 3+ in YAlO 3 crystals are studied by Weber and used to derive the 4f and 5d energy levels. Excitation and fluorescence spectra of 5d → 4f emission are also studied by Weber. From these spectra, the energy‐level values for the 5d and 2 F 7/2 multiplets are deduced, whereas the positions of the energy levels for the 2 F 5/2 multiplet given by Weber are uncertain. A detailed crystal‐field analysis of electronic energy levels of Ce 3+ doped in YAlO 3 crystals is proposed in this work. The observed crystalline‐field splittings of the Ce 3+ multiplets were accounted for using a C 1h symmetric Hamiltonian. In turn, reliable crystal‐field parameters have been obtained. This theoretical analysis confirms the observed crystalline‐field splittings of the 5d and 2 F 7/2 multiplets. The crystalline‐field splittings of the 2 F 5/2 multiplet are deduced.